Altan-Teeli (Outcrop 233/12) (Cretaceous of Mongolia)

Also known as PIN collection 3057

Where: Govi-Altai, Mongolia (46.3° N, 93.9° E: paleocoordinates 46.0° N, 93.7° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Gurvan-Eren Formation, Aptian (125.0 - 113.0 Ma)

• Lower Cretaceous deposits are held in a narrow strip along the southern slopes of the ridge. Represented mainly by basal conglomerates and sandstones formed in the final stage of the existence of the lake. Tonkosloychatyh profundal sediments formed under anaerobic conditions there. Apparently, the deflection basin quickly stopped, was relatively shallow body of water or sediment characterize the shallow part of a large body of water. Precipitation is quite coarse, poorly preserved remains of insects. Among the insects are present almost exclusively water bugs, the most common of them Bumbacorixa elytralis Yu. Popov, 1986, is endemic (possible evidence of isolation of the reservoir). Besides the remains of insects found the remains of plants, mollusks, konhostraki, ostracods.

Environment/lithology: lacustrine - large; shale and sandstone

• "Large shallow Lake"

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Reposited in the PIN

Primary reference: Y. Popov. 1986. Peloridiina (= Coleorrhyncha) and Cimicina (= Heteroptera), in Nasekomye v rannemelovykh ekosistemakh zapadnoy Mongolii. In A. P. Rasnitsyn (ed.), The Joint Soviet-Mongolian Palaeontological Expedition 28:50-83 [M. Clapham/J. Karr/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136032: authorized by Matthew Clapham, entered by Jered Karr on 15.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Hemiptera - Notonectidae
"Clypostemma sp." = Notonecta
"Clypostemma sp." = Notonecta Linnaeus 1758 true bug
PIN 3057/26
 Hemiptera - Corixidae
Cristocorixa diaprepocoroides Popov 1986 water boatman
Bumbacorixa elytralis n. gen. n. sp. Popov 1986 water boatman
PIN 3057/8